XPost: linux.debian.kernel

Package: linux-image-amd64
Version: 6.1.129-1
Severity: wishlist

Dear kernel support team,

Could you please set CONFIG_EDAC_DEBUG (Error Detection And Correction)
in kernel generation, so that it is possible to use ECC RAM when
building NAS target with ZFS ?


ansible@hn-asusgl752-400:~$ uname -a
Linux hn-asusgl752-400 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian
6.1.129-1 (2025-03-06) x86_64 GNU/Linux


ansible@hn-asusgl752-400:~$ grep CONFIG_EDAC_DEBUG
/boot/config-6.1.0-32-amd64
# CONFIG_EDAC_DEBUG is not set


ansible@hn-asusgl752-400:~$ cat /etc/debian_version
12.10


Thanks in advance

--
-- Jean-Marc LACROIX --
-- mailto : jeanmarc.lacroix@free.fr --

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XPost: linux.debian.kernel

Le 06/04/2025 à 21:10, Salvatore Bonaccorso a écrit :

Control: tags -1 + moreinfo

On Sun, Apr 06, 2025 at 07:25:04PM +0200, Jean-Marc LACROIX wrote:

Package: linux-image-amd64
Version: 6.1.129-1
Severity: wishlist

Dear kernel support team,

Could you please set CONFIG_EDAC_DEBUG (Error Detection And Correction) in >> kernel generation, so that it is possible to use ECC RAM when building NAS >> target with ZFS ?


ansible@hn-asusgl752-400:~$ uname -a
Linux hn-asusgl752-400 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian
6.1.129-1 (2025-03-06) x86_64 GNU/Linux


ansible@hn-asusgl752-400:~$ grep CONFIG_EDAC_DEBUG
/boot/config-6.1.0-32-amd64
# CONFIG_EDAC_DEBUG is not set

Why would that be needed for building NAS target with ZFS?

The config option clearly describes:

config EDAC_DEBUG
bool "Debugging"
select DEBUG_FS
help
This turns on debugging information for the entire EDAC subsystem.
You do so by inserting edac_module with "edac_debug_level=x." Valid
levels are 0-4 (from low to high) and by default it is set to 2.
Usually you should select 'N' here.

Can you elaborate on why CONFIG_EDAC_DEBUG is needed?

Regards,
Salvatore

It seems the this module is not available on standard Debian product

ansible@hn-asusgl752-400:~$ find /lib/modules/6.1.0-* -name edac_module ansible@hn-asusgl752-400:~$


Regards
--
-- Jean-Marc LACROIX () --
-- mailto : jeanmarc.lacroix@free.fr --

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XPost: linux.debian.kernel

Control: tags -1 + moreinfo

On Sun, Apr 06, 2025 at 07:25:04PM +0200, Jean-Marc LACROIX wrote:

Package: linux-image-amd64
Version: 6.1.129-1
Severity: wishlist

Dear kernel support team,

Could you please set CONFIG_EDAC_DEBUG (Error Detection And Correction) in kernel generation, so that it is possible to use ECC RAM when building NAS target with ZFS ?

ansible@hn-asusgl752-400:~$ uname -a
Linux hn-asusgl752-400 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian
6.1.129-1 (2025-03-06) x86_64 GNU/Linux

ansible@hn-asusgl752-400:~$ grep CONFIG_EDAC_DEBUG /boot/config-6.1.0-32-amd64
# CONFIG_EDAC_DEBUG is not set

Why would that be needed for building NAS target with ZFS?

The config option clearly describes:

config EDAC_DEBUG
bool "Debugging"
select DEBUG_FS
help
This turns on debugging information for the entire EDAC subsystem.
You do so by inserting edac_module with "edac_debug_level=x." Valid
levels are 0-4 (from low to high) and by default it is set to 2.
Usually you should select 'N' here.

Can you elaborate on why CONFIG_EDAC_DEBUG is needed?

Regards,
Salvatore

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XPost: linux.debian.kernel

HI Jean-Marc,,

On Sun, Apr 06, 2025 at 09:16:55PM +0200, Jean-Marc LACROIX wrote:

Le 06/04/2025 à 21:10, Salvatore Bonaccorso a écrit :

Control: tags -1 + moreinfo

On Sun, Apr 06, 2025 at 07:25:04PM +0200, Jean-Marc LACROIX wrote:

Package: linux-image-amd64
Version: 6.1.129-1
Severity: wishlist

Dear kernel support team,

Could you please set CONFIG_EDAC_DEBUG (Error Detection And Correction) in
kernel generation, so that it is possible to use ECC RAM when building NAS
target with ZFS ?

ansible@hn-asusgl752-400:~$ uname -a
Linux hn-asusgl752-400 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux

ansible@hn-asusgl752-400:~$ grep CONFIG_EDAC_DEBUG /boot/config-6.1.0-32-amd64
# CONFIG_EDAC_DEBUG is not set

Why would that be needed for building NAS target with ZFS?

The config option clearly describes:

config EDAC_DEBUG
bool "Debugging"
select DEBUG_FS
help
This turns on debugging information for the entire EDAC subsystem.
You do so by inserting edac_module with "edac_debug_level=x." Valid
levels are 0-4 (from low to high) and by default it is set to 2.
Usually you should select 'N' here.

Can you elaborate on why CONFIG_EDAC_DEBUG is needed?

Regards,
Salvatore

It seems the this module is not available on standard Debian product

ansible@hn-asusgl752-400:~$ find /lib/modules/6.1.0-* -name edac_module ansible@hn-asusgl752-400:~$

That does not really answer my question ;-)

Again, CONFIG_EDA_DEBUG is debugging module, and I was wondering why
it is needed for working with NAS targets with ZFS. Can you elaborate?

Regards,
Salvatore

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XPost: linux.debian.kernel

Le 06/04/2025 à 21:10, Salvatore Bonaccorso a écrit :

Control: tags -1 + moreinfo

On Sun, Apr 06, 2025 at 07:25:04PM +0200, Jean-Marc LACROIX wrote:

Package: linux-image-amd64
Version: 6.1.129-1
Severity: wishlist

Dear kernel support team,

Could you please set CONFIG_EDAC_DEBUG (Error Detection And Correction) in >> kernel generation, so that it is possible to use ECC RAM when building NAS >> target with ZFS ?


ansible@hn-asusgl752-400:~$ uname -a
Linux hn-asusgl752-400 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian
6.1.129-1 (2025-03-06) x86_64 GNU/Linux


ansible@hn-asusgl752-400:~$ grep CONFIG_EDAC_DEBUG
/boot/config-6.1.0-32-amd64
# CONFIG_EDAC_DEBUG is not set

Why would that be needed for building NAS target with ZFS?

The config option clearly describes:

config EDAC_DEBUG
bool "Debugging"
select DEBUG_FS
help
This turns on debugging information for the entire EDAC subsystem.
You do so by inserting edac_module with "edac_debug_level=x." Valid
levels are 0-4 (from low to high) and by default it is set to 2.
Usually you should select 'N' here.

Can you elaborate on why CONFIG_EDAC_DEBUG is needed?

Regards,
Salvatore

Salvatore,

I'm working on a project to use the Odroid H4 SBC card as a NAS server.
It seems possible to use ECC memory because the development team
validated it in 2024. Therefore, it is essential to load a dedicated
kernel module to detect potential exceptions, as suggested in the
following thread.

https://forum.odroid.com/viewtopic.php?t=48377

Regards
--
-- Jean-Marc LACROIX () --
-- mailto : jeanmarc.lacroix@free.fr --

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XPost: linux.debian.kernel

On Sun, Apr 06, 2025 at 09:16:55PM +0200, Jean-Marc LACROIX wrote:

It seems the this module is not available on standard Debian product

ansible@hn-asusgl752-400:~$ find /lib/modules/6.1.0-* -name edac_module ansible@hn-asusgl752-400:~$

The module would be named "edac_core", but it is built-in since 4.19.

Bastian

--
Humans do claim a great deal for that particular emotion (love).
-- Spock, "The Lights of Zetar", stardate 5725.6

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